Synology / Storage Expansion Units

Synology FX2421

Manufacturer P/N: FX2421

Synology FX2421 Storage Expansion Units. supports creating volumes across different units: FS series: FS6400, FS3600, FS3400; drive bays: 24; drive type: 2.5" SAS HDD 2.5" SAS SSD 2.5" SATA SSD. Request pricing and a matched configuration from Star Networking.

Model / part number: FX2421
Supports creating volumes across different units: FS series: FS6400, FS3600, FS3400
Drive Bays: 24
Drive Type: 2.5" SAS HDD 2.5" SAS SSD 2.5" SATA SSD

$4,679.99 USD · Condition confirmed with quotation

Synology FX2421 standard configuration. Additional drives, memory, network adapters and installation services are quoted separately.

Pricing, availability, condition, included options and warranty are confirmed in your quotation.

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Expansion shelf

Expand the matching storage system.

Match the shelf to your host system.

This is an expansion enclosure, not a standalone server. Select supported drives and the correct I/O modules, cables and host connection.

Original HDDs & SSDs

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Expansion & connection

Review supported shelves, enclosure I/O modules, rails and cables.

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Software & licenses

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Send the array model, current drive P/N and software release for a matched list of original drives and licenses.

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CONNECTIONS & COMPATIBILITY

Expand a supported storage system

An expansion shelf adds bays behind a compatible controller. It does not replace the server, storage controller or Ethernet switch.

CONNECTS TOQualified parent system

FX2421Storage Expansion Units

USED FORAdditional drive capacity

Connection and installation requirements

Parent array and supported shelf generation
IOM, firmware, cables and shelf limits

Storage arrays ↗Original drives ↗

Browse the product categories above for related equipment. Confirm compatibility with your full configuration before ordering.

Technical overview

Technical specifications

Use the complete part number when reviewing options and system requirements.

FX2421 specifications
Manufacturer	Synology
Model / part number	FX2421
Supports creating volumes across different units	FS series: FS6400, FS3600, FS3400
Drive Bays	24
Drive Type	2.5" SAS HDD 2.5" SAS SSD 2.5" SATA SSD
RAID Management through Synology DSM	Supported
SAS IN-port	1
SAS OUT-port	1
Size (Height × Width × Depth)	88 mm x 430.5 mm x 692 mm
Size (Height x Width x Depth) (with server ears)	88 mm x 482 mm x 724 mm
Weight	14.5 kg
Rack Installation Support	4-post 19" rack (Synology Rail Kit - RKS-02 )
Power Supply Unit / Adapter	500 W
AC Input Power Voltage	100V to 240V AC
Power Frequency	50/60 Hz, Single Phase
Redundant Power Supply	Supported
Operating Temperature	0°C to 35°C (32°F to 95°F)
Storage Temperature	-20°C to 60°C (-5°F to 140°F)
Operating Humidity	8% to 80% RH
Storage Humidity	5% to 95% RH
System Fan	80 mm x 80 mm x 4 pcs
Easy Replacement System Fan	Supported
Optional Accessories	Enterprise Series 2.5" SATA SSD: SAT5200 Series Rail Kit Sliding: RKS-02

PRODUCT DETAILS

Features and applications

FX2421 configuration overview

Order against the exact part number. A chassis, expansion enclosure and upgrade component are different products; installed drives and optional modules must be specified in the quotation.

Deployment planning

Confirm the workload, usable capacity, network connectivity and power requirements before selecting options. An expansion connector is not automatically compatible with every enclosure. Keep an independent backup appropriate to your recovery requirements.

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Send the model, quantity, required drives or upgrades, and destination. We will quote the configuration and confirm included items, condition and commercial terms.

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Ordering and delivery

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